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annotate service/reasoning/actions.py @ 600:a34dee00a989

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comments and logging Ignore-this: 75df9bd5008caef0fd53eaa811f1500a
author drewp@bigasterisk.com
date Tue, 23 Jul 2019 10:16:59 -0700
parents 1ceb26846eca
children 0b1249c3137d
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1 from rdflib import URIRef, Namespace, RDF, Literal
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2 import logging
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3 import urllib
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4
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5 from cyclone.httpclient import fetch
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6 log = logging.getLogger('output')
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7 log.setLevel(logging.WARN)
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8
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9 ROOM = Namespace("http://projects.bigasterisk.com/room/")
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10 DEV = Namespace("http://projects.bigasterisk.com/device/")
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11
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12 class Actions(object):
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13 def __init__(self, sendToLiveClients):
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14 self.sendToLiveClients = sendToLiveClients
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15
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16 def putResults(self, deviceGraph, inferred):
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17 """
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18 some conclusions in the inferred graph lead to PUT requests
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19 getting made
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20
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21 if the graph contains (?d ?p ?o) and ?d and ?p are a device
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22 and predicate we support PUTs for, then we look up
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23 (?d :putUrl ?url) and (?o :putValue ?val) and call
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24 PUT ?url <- ?val
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25
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26 If the graph doesn't contain any matches, we use (?d
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27 :zeroValue ?val) for the value and PUT that.
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28 """
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29 self._putDevices(deviceGraph, inferred)
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30 self._oneShotPostActions(deviceGraph, inferred)
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31 for dev, pred in [
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32 #(URIRef('http://bigasterisk.com/host/bang/monitor'), ROOM.powerState),
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33 (URIRef('http://bigasterisk.com/host/dash/monitor'), ROOM.powerState),
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34 (URIRef('http://bigasterisk.com/host/frontdoor/monitor'), ROOM.powerState),
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35 (ROOM['storageCeilingLedLong'], ROOM.brightness),
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36 (ROOM['storageCeilingLedCross'], ROOM.brightness),
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37 (ROOM['garageOverhead'], ROOM.brightness),
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38 (ROOM['headboardWhite'], ROOM.brightness),
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39 (ROOM['changingWhite'], ROOM.brightness),
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40 (ROOM['starTrekLight'], ROOM.brightness),
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41 (ROOM['kitchenLight'], ROOM.brightness),
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42 (ROOM['kitchenCounterLight'], ROOM.brightness),
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43 (ROOM['livingRoomLamp1'], ROOM.brightness),
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44 (ROOM['livingRoomLamp2'], ROOM.brightness),
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45 (ROOM['bedLedStrip'], ROOM.color),
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46 ]:
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47 url = deviceGraph.value(dev, ROOM.putUrl)
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48
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49 log.debug('inferredObjects of dev=%s pred=%s',
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50 deviceGraph.qname(dev),
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51 deviceGraph.qname(pred))
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52 inferredObjects = list(inferred.objects(dev, pred))
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53 if len(inferredObjects) == 0:
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54 # rm this- use activated instead
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55 self._putZero(deviceGraph, dev, pred, url)
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56 elif len(inferredObjects) == 1:
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57 log.debug(' inferredObject: %s %s %r',
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58 deviceGraph.qname(dev),
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59 deviceGraph.qname(pred),
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60 inferredObjects[0].toPython())
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61 self._putInferred(deviceGraph, url, inferredObjects[0])
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62 elif len(inferredObjects) > 1:
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63 log.info(" conflict, ignoring: %s has %s of %s" %
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64 (dev, pred, inferredObjects))
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65 # write about it to the inferred graph?
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66
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67 def _oneShotPostActions(self, deviceGraph, inferred):
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68 """
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69 Inferred graph may contain some one-shot statements. We'll send
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70 statement objects to anyone on web sockets, and also generate
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71 POST requests as described in the graph.
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72
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73 one-shot statement ?s ?p ?o
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74 with this in the graph:
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75 ?osp a :OneShotPost
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76 ?osp :subject ?s
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77 ?osp :predicate ?p
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78 this will cause a post to ?o
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79 """
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80 # nothing in this actually makes them one-shot yet. they'll
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81 # just fire as often as we get in here, which is not desirable
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82 log.info("_oneShotPostActions")
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83 def err(e):
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84 log.warn("post %s failed", postTarget)
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85 for osp in deviceGraph.subjects(RDF.type, ROOM['OneShotPost']):
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86 s = deviceGraph.value(osp, ROOM['subject'])
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87 p = deviceGraph.value(osp, ROOM['predicate'])
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88 if s is None or p is None:
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89 continue
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90 #log.info("checking for %s %s", s, p)
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91 for postTarget in inferred.objects(s, p):
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92 log.info("post target %r", postTarget)
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93 # this packet ought to have 'oneShot' in it somewhere
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94 self.sendToLiveClients({"s":s, "p":p, "o":postTarget})
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95
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96 log.info(" POST %s", postTarget)
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97 fetch(postTarget, method="POST", timeout=2).addErrback(err)
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98
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99 def _putDevices(self, deviceGraph, inferred):
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100 agentFor = {}
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101 for stmt in inferred:
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102 if stmt[1] == ROOM['putAgent']:
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103 agentFor[stmt[0]] = stmt[2]
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104 for stmt in inferred:
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105 log.info('inferred stmt we might PUT: %s', stmt)
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106 putUrl = deviceGraph.value(stmt[0], ROOM['putUrl'])
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107 putPred = deviceGraph.value(stmt[0], ROOM['putPredicate'])
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108 matchPred = deviceGraph.value(stmt[0], ROOM['matchPredicate'],
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109 default=putPred)
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110 if putUrl and matchPred == stmt[1]:
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111 log.info('putDevices: stmt %r %r %r leds to putting at %r',
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112 stmt[0], stmt[1], stmt[2], putUrl)
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113 self._put(putUrl + '?' + urllib.urlencode([
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114 ('s', str(stmt[0])),
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115 ('p', str(putPred))]),
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116 str(stmt[2].toPython()),
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117 agent=agentFor.get(stmt[0], None))
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118
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119 def _putInferred(self, deviceGraph, putUrl, obj):
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120 """
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121 HTTP PUT to putUrl, with a payload that's either obj's :putValue
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122 or obj itself.
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123 """
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124 value = deviceGraph.value(obj, ROOM.putValue)
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125 if value is not None:
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126 self._put(putUrl, payload=str(value))
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127 elif isinstance(obj, Literal):
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128 self._put(putUrl, payload=str(obj))
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129 else:
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130 log.warn(" don't know what payload to put for %s. obj=%r",
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131 putUrl, obj)
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132
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133 def _putZero(self, deviceGraph, dev, pred, putUrl):
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134 # zerovalue should be a function of pred as well.
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135 value = deviceGraph.value(dev, ROOM.zeroValue)
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136 if value is not None:
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137 log.info(" put zero (%r) to %s", value.toPython(), putUrl)
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138 self._put(putUrl, payload=str(value))
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139 # this should be written back into the inferred graph
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140 # for feedback
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141
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142 def _put(self, url, payload, agent=None):
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143 assert isinstance(payload, bytes)
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144 def err(e):
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145 log.warn(" put %s failed (%r)", url, e)
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146 log.info(" PUT %s payload=%s agent=%s", url, payload, agent)
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147 headers = {}
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148 if agent is not None:
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149 headers['x-foaf-agent'] = [str(agent)]
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150 fetch(url, method="PUT", postdata=payload, timeout=2,
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151 headers=headers).addErrback(err)